The MovePhotoSet method moves a photoset from one group to another. This method can also be used to change the position of a photoset within the group.
void MovePhotoSet(
long photoSetId,
long destGroupId,
int index
)The photoset identified by the photoSetId parameter and the group identified by the destGroupId parameter must be owned by the currently authenticated user.
To change the position of a photoset within the group, specify the identifier of the containing group in destGroupId. The index parameter is zero-based, that is, the very first item in the group has index 0, the following item has index 1, and so on.